It’s not a rumors nor a guess it’s official. A video released by Microsoft shows the integration of social networking sites such as

Facebook

Twitter

Linkedln

Windows Live

The video pushed out by Microsoft leads a developer of Windows Phone 7, Stuart Bottom who has been working for Microsoft from September 2010 on the integration of Twitter and Linkedln. Well according to rumors and recent tweets Mango should be out until Fall 2011 and if you remember a month back an Acer device was shown out in which the default OS was Mango. Mango is right now in the hands of developer in which the Twitter nor Linkedln integration is shown.

So with out wasting time lets head up to the video demonstrating the integration